Affiliation:
1. Civil Aviation University of China
Abstract
<div class="section abstract"><div class="htmlview paragraph">The non-uniformity of the atmospheric medium induces the refraction effect in
signal propagation, causing the bending of propagation paths and a propagation
velocity slower than the speed of light. Consequently, it affects the time of
arrival and, in turn, influences the performance of Multilateration
systems(MLAT). This research analyze the influencing factors of atmospheric
refraction and employs Innsbruck sounding data to fit a refractive index
profile. The proposed model demonstrates superior performance in predicting the
refractive index for the Innsbruck region compared to the three traditional
models: the three-segment model, the exponential model, and the double
exponential model. Furthermore, this study unveils the impact of atmospheric
refraction on time difference observations and the mechanism leading to
positioning errors. To address this, a novel atmospheric refraction correction
algorithm based on the Taylor method is introduced and its effectiveness is
verified.</div></div>
Reference16 articles.
1. Chan , Y.T.
and
Ho , K.C.
A Simple and Efficient Estimator for Hyperbolic
Location IEEE Transactions on Signal
Processing 42 8 2002 1905 1915 10.1109/78.301830
2. Bolelov , E.A. ,
Lezhankin , B.V. ,
Erokhin , V.V. ,
Zyabkin , S.A.
et al.
A Study of Aircraft Positioning Precision in a
MLAT Surveillance System with Different Flight Paths and Ground Station
Layouts 2022 XIX Technical Scientific
Conference on Aviation Dedicated to the Memory of N.E. Zhukovsky
(TSCZh) 71 75 2022 10.1109/TSCZh55469.2022.9802457
3. Sen , Z.
2015
4. Fengxun , G.
and
Mengran , L.
Principle and Performance Analysis of Base
Station Cluster Multipoint Localization Journal of
Beijing University of Aeronautics and Astronautics 2023 1 14 10.13700/j.bh.1001-5965.2021.0751
5. Jie , H.
Correction for Atmospheric Refractive Error of Radio
Wave Beijing National Defense Industry Press 1999 89 24